leaf_photosynthesis_Jmax_per_area

Label: Leaf Jmax per unit leaf area (Jmax)
Entity URI: https://w3id.org/APD/traits/trait_0020410
Type: numeric
Definition: Maximum [NCIT:C25564] electron transport [MESH:D004579] rate [PATO:0000161] through the photosynthetic [GO:0015979] electron transport chain [GO:0022900], recorded per unit leaf [PO:0025034] area [PATO:0001323]. The value is a model parameter [STATO:0000034] derived from the portion of the photosynthesis A-ci response curve at high carbon dioxide concentrations where ATP and NADPH production by the light reactions [GO:0019684] limits the rate of carboxylation [MOP:0000591].;The maximum potential photosynthetic electron transport rate, recorded per unit leaf area. This is a model-derived value, calculated from the portion of an A-ci response curve (curve showing the photosynthetic response to increasing carbon dioxide concentrations) at high carbon dioxide concentrations. This is the portion of the curve where the photosynthetic rate is limited by the rate of ATP and NADPH production by the light reactions.
Additional comments: This trait is explicitly for Jmax per leaf area measurements made at a temperature other than 25 deg C. It is essential to record measurement temperature as a context property as Jmax is very sensitive to changes in temperature. Measurements made at 25 deg C should be mapped to `leaf_photosynthesis_Jmax_per_area_25C`
units: umol{CO2}/m2/s
allowable range: 10 - 800 umol{CO2}/m2/s

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0020410) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 208 records. This includes: